Kuyini imvume futhi imvume ikalwa kanjani kuma-rolling bearings?

Ukucaciswa kwebheringi eginqikayo yinani eliphezulu lomsebenzi elibamba iringi eyodwa endaweni bese enye ibheke endaweni ye-radial noma ye-axial. Umsebenzi omkhulu ohambisana ne-radial ubizwa ngokuthi i-radial clearance, kanti umsebenzi omkhulu ohambisana ne-axial ubizwa ngokuthi i-axial clearance. Ngokuvamile, i-radial clearance inkulu, i-axial clearance inkulu, futhi ngokuphambene nalokho. Ngokwesimo se-bearing, imvume ingahlukaniswa ngezinhlobo ezintathu ezilandelayo:

I. Imvume yoqobo

Imvume yamahhala ngaphambi kokufakwa kokuthwala. Ukuvunyelwa kwasekuqaleni kunqunywa ukucutshungulwa komkhiqizi nokuhlanganisa.

2. Faka imvume

Okwaziwa nangokuthi yi-fit clearance, wukuvula lapho kufakwe i-bearing neshaft kanye ne-bearing housing kodwa ingakasebenzi. Imvume yokukhweza incane kunemvume yasekuqaleni ngenxa yokunyuka kokuphazamiseka, noma ukwandisa iringi yangaphakathi, ukunciphisa iringi yangaphandle, noma kokubili.

3. Imvume yokusebenza

Uma ukuthwala kusesimweni sokusebenza, izinga lokushisa elingaphakathi lendandatho likhuphukela phezulu futhi ukunwetshwa okushisayo kuya phezulu, ukuze imvume yokuthwala iyancipha. Ngesikhathi esifanayo, ngenxa yomphumela womthwalo, ukuguqulwa kwe-elastic kwenzeka endaweni yokuxhumana phakathi komzimba ojikelezayo nomgwaqo womjaho, okwandisa imvume yokuthwala. Ukuthi imvume yokusebenza ethwalayo inkulu noma incane kunemvume yokukhweza kuncike kumphumela ohlangene walezi zici ezimbili.

Amanye ama-rolling bears awakwazi ukulungiswa noma ukuhlakazwa. Atholakala kumamodeli ayisithupha, ukusuka ku-0000 kuya ku-5000; Kukhona uhlobo lwe-6000 (ama-angular contact bearings) bese uthayipha u-1000, Thayipha u-2000 no-Type 3000 onezimbobo zamakhoni eringini yangaphakathi. Ukugunyazwa okukhulayo kwalezi zinhlobo zama-rolling bearings, ngemva kokulungiswa, kuzoba kuncane kunemvume yasekuqaleni. Ngaphezu kwalokho, amanye ama-bearings angasuswa, futhi imvume ingalungiswa. Kunezinhlobo ezintathu zamabheringi: Uhlobo 7000 (i-tapered roller bear), thayipha 8000 (i-thrust ball bear) kanye nohlobo 9000 (i-thrust roller bear). Akukho imvume yokuqala kulezi zinhlobo ezintathu zama-bearings. Ohlotsheni lwe-6000 kanye nohlobo lwe-7000 rolling bearings, imvume ye-radial iyancishiswa futhi imvume ye-axial nayo iyancishiswa, futhi ngokuphambene nalokho, kuyilapho uhlobo lwe-8000 kanye nohlobo lwe-9000 rolling bearings, i-axial clearance kuphela ebaluleke kakhulu.

Ukucaciswa okufanelekile kokufakwa kusiza ukusebenza okuvamile kwe-rolling bear. Ukuvunyelwa kuncane kakhulu, izinga lokushisa elithwalayo liyakhuphuka, alikwazi ukusebenza ngokujwayelekile, ukuze umzimba ogoqayo ubambeke; Ukususwa ngokweqile, ukudlidliza kwemishini, umsindo oginqikayo.

Indlela yokuhlola i-radial clearance imi kanje:

I. Indlela yezinzwa

1. Ngokuthwala okujikelezayo kwesandla, ukuthwala kufanele kube bushelelezi futhi kuguquguquke ngaphandle kokunamathela kanye ne-astringency.

2. Shake iringi yangaphandle yesithako ngesandla. Ngisho noma imvume ye-radial ingu-0.01mm kuphela, ukunyakaza kwe-axial kwephuzu eliphezulu lokuthwala kungu-0.10-0.15mm. Le ndlela isetshenziselwa ama-bearings amabhola aphakathi nomugqa owodwa.

Indlela yokulinganisa

1. Hlola futhi uqinisekise isikhundla esiphezulu somthwalo webheringi eginqikayo ngesinzwa, faka into ezwakalayo phakathi komzimba ogoqayo ongu-180° kanye nendandatho yangaphandle (yangaphakathi), futhi ukujiya okufanelekile kwesinzwayo wukukhululeka kwe-radial kwebheringi. Le ndlela isetshenziswa kabanzi kuma-self-aligning bearings nama-cylindrical roller bearings.

2, hlola ngenkomba yokudayela, qala usethe inkomba yokudayela ku-zero, bese uphakamisa iringi yangaphandle eginqikayo, ukufundwa kwenkomba yokudayela wukucaciswa kwe-radial kwebheringi.

Indlela yokuhlola i-axial clearance imi kanje:

1. Indlela yezinzwa

Hlola i-axial clearance ye-rolling bear ngomunwe wakho. Le ndlela kufanele isetshenziswe lapho ukuphela kwe-shaft kuvezwa. Lapho ukuphela kwe-shaft ivaliwe noma ayikwazi ukuhlolwa ngeminwe ngezinye izizathu, hlola ukuthi i-shaft iyaguquguquka yini ngokujikeleza.

2. Indlela yokulinganisa

(1) Hlola nomuntu ozizwayo. Indlela yokusebenza iyafana naleyo yokuhlola imvume ye-radial nge-feel, kodwa imvume ye-axial kufanele ibe

C = lambda/sin (2 beta)

Lapho c -- imvume ye-axial, mm;

-- Ubukhulu begeji, mm;

-- I-Angle yekhoni yokuthwala, (°).

(2) Hlola ngenkomba yokudayela. Uma i-crowbar isetshenziselwa ukuhambisa i-shaft enyakazayo ezindaweni ezimbili ezidlulele, umehluko wokufundwa kwenkomba yokudayela ukucaciswa kwe-axial ye-bearing. Kodwa-ke, amandla asetshenziswe ku-crowbar akufanele abe mkhulu kakhulu, ngaphandle kwalokho igobolondo liyoba ne-deformation elastic, noma ngabe i-deformation incane kakhulu, izothinta ukunemba kwe-axial clearance.